ES2554250T3 - Device for sealing the neck of a bottle - Google Patents

Abstract

Device for sealing the neck (G) of a bottle (B), said device (1) comprising: (i) a stopper (2) comprising two cylindrical parts (3, 4) extending in prolongation of each other according to a longitudinal axis (2 '), respectively forming a stopper body (3) and a stopper head (4), said stopper head (4) having a diameter that is greater than the diameter of said stopper body (3), and said stopper head (4) comprising a lower surface (13), connected to said stopper body (3) and a free upper surface (14), located in opposition to said lower surface (13) along said longitudinal axis (2 '), and (ii) a tubular cap (5) having a longitudinal axis (5') and within which said cap (2) is intended to be housed coaxially, said cap (5) comprising two parts (6, 7 ) that extend in prolongation of each other along said longitudinal axis (5 '), respectively forming a skirt (6) intended or to extend in front and at a distance from said stopper body (3), comprising means (28) for its interlocking in translation on said bottle (B), and an operculum (7) intended to cover said stopper head (4), and wherein (iii) said stopper head (4) and said operculum (7) comprise cam means (17, 32) that cooperate with each other to cause, during a rotational maneuver (S) of said operculum (7) with respect to said stopper head (4) around said longitudinal axes (2 ', 5'), a movement in translation (T) of said operculum (7) with respect to said stopper head (4) according to said longitudinal axes (2 ', 5') and in a direction (T) oriented from the lower surface (13) towards the upper surface (14) of said cap head (4) so that once said sealing device (1) It is placed on the neck (G) of a bottle (B), characterized in that said operculum (7) and said tubular skirt (6) are solid two one with the other by means of union (8) that comprise zones of initiation of breakage (8a), and because said manual maneuver in rotation of said cap (7) of cap (5) causes the degradation of said means of union (8).

Description

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DESCRIPTION

Device to seal the neck of a bottle.

The present invention relates to a device for sealing a bottle comprising a cap to be inserted into its neck and a cap (or capsule) that fits into its neck, the cap of which comprises two parts, one of them forming a skirt and the other an opercle, in solidarity with connection means that include breakage start zones.

Beverage bottles, particularly glass bottles, comprise a body or belly that narrows at the top to form a neck terminated by a neck.

The caps or capsules, generally called overcap caps, comprise a tubular skirt to protect the neck of the bottles, prolonged by an operculum designed to protect a cap placed within the neck of the neck.

The upper face of the detachable opercle frequently serves as a support for a tax vineyard.

Some caps are made by molding plastic material and are positioned by force fitting on the neck of the bottle.

When an individual wishes to open the bottle, it is necessary to remove the opercle and then remove the cap.

The removal of the opercle is sometimes done manually or, more generally, with the help of an appropriate cutting tool (for example, a knife or the like).

In order to make a clean and aesthetic separation between the opercle and the skirt, as described in documents DE-103 45 654 or FR-2 280 560, it can be envisaged to solidarity these two parts of the bonnet by means comprising areas of breakage initiation .

The cap is then equipped with a removable peripheral tongue, placed between the skirt and the opercle, which is removed manually at the time of opening the bottle.

However, this detachable tongue is not always easy to remove and complicates the structure of the cap.

On the other hand, as described in document DE-10 2006 033 413, which discloses a device according to the preamble of claim 1, associated cap / cap assemblies by cam means are also known, which are designed to facilitate removal of the plug by a rotation movement of the cap.

With this type of structure, at the time of opening the bottle, a rotation movement of the cap allows you to climb along the neck of the bottle thanks to the upper cam means. And stop systems arranged on the inner walls of the cap come to rest under the head of the cap that protrudes radially from the cap in order to start the removal of the cap body driven into the neck.

However, the cap remains here in one piece to be able to climb completely and ensure its function of removing the plug; therefore, it is not a question here at all of its separation into two parts of the faldon / operculo, nor of solving a problem linked to such separation.

In addition, the arrangement of the stops inside the cap requires the presence of a shoulder over the contour of the head of the cap, which imposes its projecting radial projection and, therefore, obliges an important anti-static dimension and can cause problems .

In this context, there is a need for a shutter device for bottles whose opercle of the cap is easily removable manually with respect to the skirt of the cap, without excessive effort or accessory.

For this, the sealing device according to the invention comprises:

(i) a plug comprising two cylindrical parts extending in length from one another according to a longitudinal axis, respectively forming a plug body and a plug head, whose plug head has a diameter that is larger than the diameter of said body of stopper, and whose stopper head comprises a lower surface, connected to said stopper body, and a free upper face, located in opposition to said lower surface according to said longitudinal axis, and

(ii) a tubular cap that has a longitudinal axis and within which said cap is intended to be coaxially housed, whose cap comprises two parts that extend in length from one another according to said longitudinal axis, respectively forming a skirt intended to extend opposite and said distance

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stopper body, comprising means for its interlocking in translation on the bottle, and an operculum intended to cover said stopper head, said opercle and said tubular skirt being integral with one another by means of joining comprising areas of initiation of breakage .

According to the invention, the stopper head and the opercle comprise cam means that cooperate with each other to cause, during a rotating maneuver of said opercle with respect to said stopper head about said longitudinal axes, a movement in translation of said opercle with respect to said stopper head according to said longitudinal axes and in a direction oriented from the lower surface towards the upper surface of said stopper head, so that, once this sealing devices is conveniently placed on the neck of the a bottle, said manual maneuver in rotation of said coping opercle causes a separation of the joined edges and thus the degradation of said joining means.

This structure is interesting because of its simplicity and because it allows degrading the means of union by a relatively small effort.

It also allows to conserve a rotation movement for the detachment of the opercle and for the rupture of the joining means, of the type present in the screwed capsules, and this in a bottle whose neck is devoid of a particular profile, especially a filleting or One screw step.

Thus, the use of a bottle provided with a fillet at the level of the neck is avoided, with the high manufacturing costs and the sealing problems arising therefrom.

Next, other advantageous features of the invention are required, which may be taken independently or in combination.

The cam means advantageously comprise two parts, one arranged on said opercle and the other disposed on said cap head, with:

- a first part forming a slide and comprising at least one helical ramp, and

- a second part that forms a slide and which comprises at least one stud, an end surface from which it is intended to slide along said helical ramp during said rotating maneuver.

In this case, the first part of the cam means is preferably composed of several successive helical ramps, distributed around the longitudinal axis and each extending over a given angular sector; and the second part of the cam means preferably comprises several lugs that are distributed around the longitudinal axis and spaced from each other with a given angular sector.

Likewise, in this case, the ramp or ramps advantageously each have an ascending slope according to a given direction of rotation about the longitudinal axis; and the stud (s) advantageously comprise an end surface that has a complementary slope of said associated ramp.

Preferably, the first part of the cam means comprises several pairs of successive ramps (at least two pairs of ramps), distributed around the longitudinal axis, whose pairs of ramps each comprise a junction point from which said two ramps extend, each with an ascending slope according to a direction of inverse rotation of one with respect to another; and the studs comprise a V-end surface whose slopes are complementary to said two ramps; This particular structure authorizes a manual maneuver in rotation of the opercle according to two inverse directions with respect to each other, clockwise and counterclockwise (also called "right" and "left" ).

However, in this case, the first part of the cam means is advantageously disposed on the stopper head and the second part of the cam means is arranged on the opercle.

Preferably, the plug head then comprises a central tubular wall and a peripheral tubular wall, at a distance from each other, said lower edges being connected by a crown forming the bottom surface of the plug head; the upper edge of the central tubular wall defines the upper surface of the plug head, and the upper edge of one of said tubular walls constitutes said ramps.

The opercle advantageously comprises a tubular wall that extends a bottom wall; furthermore, the inner surface of said tubular wall of the opercle and the inner surface of the lugs of the opercle cooperate, respectively, with the peripheral and central tubular walls of the stopper head for the rotation guidance of said opercle.

According to a preferred embodiment, the plug head and the opercle also comprise:

- a stop means in rotation to limit the rotation maneuver of said opercle with respect to said stopper head on a given angular sector and thus define a separate limit position position, and

- interlocking means for blocking, at least in translation, said opercle on said

5 plug head in said separate position.

The stop means advantageously comprise at least one radial partition against which one of the lugs stops during the operation of the opercle towards the separated position.

The interlocking means advantageously consist of complementary structures that cooperate by

10 elasticated lace of enclosed type.

These elastic interlocking means are preferably designed to also ensure the maintenance of the plug head in said opercle before the rotational maneuver of the latter.

The opercle also preferably comprises a tubular wall whose outer surface is provided with a motif that facilitates the grip, in particular for its rotation maneuver.

The present invention also relates to a bottle equipped with a sealing device as defined above, this bottle advantageously comprising a neck devoid of a particular profile,

20 especially a filleting.

The invention will also be illustrated, without being limited at all, by the following description of a particular embodiment, in relation to the attached drawings, in which:

25 - Figure 1 is a general and perspective view of the sealing device according to the invention, placed

on the neck of a bottle;

- Figure 2 is a side view of the sealing device of Figure 1;

- Figure 3 represents the sealing device and the neck of a bottle illustrated in Figures 1 and 2, according to a radial cutting plane;

30 - figure 4 corresponds to figure 3, but in which the cap and opercle are separated from the

associated bottle and cap skirt;

- figure 5 represents the sealing device of figures 1 to 4, isolated from the bottleneck and according to a radial cutting plane;

- Figures 6 and 7 illustrate the plug constituting the sealing device, respectively in perspective.

35 and in side view;

- Figure 8 consists of a section of the cap of Figures 6 and 7 according to a radial cutting plane;

- Figure 9 is a detail view of Figure 8, showing the structure of its interlocking means

by elastic fit with the opercle of the cap;

- figure 10 represents the plug according to figures 6 to 9, seen from above;

40 - Figure 11 represents the cap constituting the sealing device, in perspective;

- Figure 12 corresponds to Figure 11, but in which the opercle has been separated from the skirt by degradation of the joining means;

- Figure 13 is a side view of the cap according to Figure 11;

- figure 14 represents the cap of figures 11 and 13 according to the radial cutting plane XIV-XIV of figure 13;

45 and

- Figures 15 and 16 represent in an enlarged manner the cooperation between the cap head and the opercle, with a partial local cut of the latter to illustrate the maneuver in rotation of the cope opercle on the cap head, from a retracted initial position. (figure 15) to a separate pivoted final position (figure 16), causing the degradation of the joining means arranged between the opercle and the skirt of the

50 cop.

As shown in Figures 1 to 4, the sealing device 1 according to the invention is intended to be attached on a bottle B.

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Bottle B, of classic structure, is advantageously intended to contain a beverage, in particular wine.

Such bottle B is advantageously made of glass.

This bottle B comprises a body (also called "belly" or "shaft", not shown), crowned by a neck C (figures 1 to 4) narrower and sharper, terminated in turn by a neck G (visible in the figures 3 and 4).

The neck C comprises a monobloc collar D (visible in figures 3 and 4) commonly referred to as "ring", intended to cooperate with the sealing device 1.

The monobloc collar D consists of a monobloc ring chosen from among the following common categories: "cetie ring" or "single flat ring", "square cetie ring", "square ring" or "solid ring".

The sealing device 1 according to the invention, represented in Figures 1 to 5, is composed here of two distinct pieces:

(i) a cap 2 (visible in Figures 3 to 5) comprising a cap body 3, intended to close the neck G to prevent the circulation of liquid, and a cap head 4, intended to rest on the neck G and in extension of neck C, and

(ii) a tubular cap 5 comprising a tubular skirt 6, intended to extend in front of the cap body 3 and to cover at least a part of the height of the neck C of the bottle B, and an opercle 7, intended to cover the head 4 of the plug 2.

The plug 2 and the tubular cap 5 are advantageously made by molding a plastic material, for example high density polyethylene. Each one of them constitutes a monobloc piece.

In particular, the tubular skirt 6 and the opercle 7 of the cap 5 are joined to one another by means of connection 8 comprising areas of breakage 8a; these joining means 8 are described in more detail below in relation to figures 11 to 14.

According to the invention, the head 4 of the cap 3 and the opercle 7 of the cap 5 cooperate with one another by cam means to guide a maneuver of this opercle 7 according to a helical movement with respect to the associated cap head 4 in order to limit the effort and optimize the movement necessary for the breaking of the joining means 8 once this sealing device 1 is installed on a bottle B.

In addition, the opercle 7 of the cap 5 here presents the interest of being able to be an integral part of the cap 2 (figure 4) to facilitate the extraction and placement operations of the latter.

The structure of the plug 2 is described in more detail below in relation to Figures 6 to 10.

The body 3 and the head 4 of the plug 2 constitute two cylindrical parts that extend in extension from one another and coaxially with respect to each other according to a longitudinal axis 2 '.

The body 3 of the plug 2 is here composed of a tubular wall 10 whose lower edge, opposite the plug head 4, is connected to a bottom wall 11.

The tubular wall 10 extends coaxially to the aforementioned longitudinal axis 2 '; the bottom wall 11 extends perpendicular to this same longitudinal axis 2 '.

The tubular wall 10 is provided with sealing means 12, constituted here by several overlapping annular sealing ribs.

These sealing means 12 are intended to conform to the inner surface of the neck C, at the level of the neck G, to prevent any liquid circulation.

The head 4 of the cap 2 has a diameter that is greater than the diameter of the body 3 of the cap 2 and that is substantially equal, or even slightly smaller, to the outside diameter of the neck G of the bottle B.

This head 4 of the stopper 2 is delimited by a lower surface 13, connected to said stopper body 3 and which forms an annular lower shoulder, and an upper surface 14, located in opposition to said lower surface 13 and of the body 3 of the stopper 2 according to said longitudinal axis 2 '.

These lower surfaces 13 and upper 14 extend here each in a plane perpendicular to the longitudinal axis 2 'of the plug 2.

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The head 4 is composed here of two tubular walls 15 and 16 which extend coaxially with respect to each other and coaxially with the longitudinal axis 2 '.

A first central tubular wall 15 is formed by an upper band of the tubular wall 10 of the body 3, as opposed to the bottom wall 11 (Figure 8).

The free upper edge 15a of this central tubular wall 15, circularly viewed from above (Figure 10), extends here in a plane oriented perpendicularly to the longitudinal axis 2 'and defines the upper surface 14 of the plug head 4.

The second peripheral tubular wall 16 extends in turn parallel and at a distance from the central wall 15.

This peripheral tubular wall 16 constitutes the cylindrical peripheral surface of the head 4 of the plug 2.

The free upper edge 16a of this outer tubular wall 16 is annular / circular, seen from above (Figure 10), and has a profile consisting of a plurality of successive helical ramps 17 to constitute a sliding part of the cam means .

The ramps 17 are distributed around the longitudinal axis 2 'and extend each of them over a given angular sector.

Each of these ramps 17 has an ascending slope according to a given direction of rotation about the longitudinal axis 2 '.

"Ascending slope" means the direction of rotation (clockwise and counterclockwise, as the case may be) in which the ramp 17, viewed from above (figure 10), advances from a upstream end located on the side of the lower surface 13 of the head 4 to a downstream end located on the side of the upper surface 14 of the same head 4.

More precisely, the upper edge 16a of this outer tubular wall 16 comprises several pairs of successive ramps 17, here in number of four, distributed around the longitudinal axis 2 '.

Each pair of ramps 17 comprises an upstream junction point 18 located on the side of the lower surface 13, from which the two ramps 17 extend, each with an ascending slope according to a direction of inverse rotation of one with respect to to another.

Thus, as shown in Figures 7 and 10 and taking into account the longitudinal axis 2 ', each pair comprises a first ramp 17a increasing in a clockwise direction and a second ramp 17b increasing in a reverse direction opposite to clockwise.

The two ramps 17 advantageously have the same slope value with respect to the plane perpendicular to the longitudinal axis 2 '.

Each pair of ramps 17 thus has, as seen from the side, a general form of V that opens in the direction of the upper surface 14.

In the present embodiment, a first ramp 17a of a pair is also directly connected to a second ramp 17b of a juxtaposed pair.

This joint is made by a downstream junction point 19 which is located in the plane that passes through the upper surface 14 (that is, here the plane that passes through the free edge 15a of the central tubular wall 15) or approximately in this flat.

The outer tubular wall 16 is also provided, at the level of its outer surface, with several superimposed annular ribs 20.

As developed below, these annular ribs 20 constitute interlocking means intended to block the opercle 7 on the plug head 4 in a pivoted end-of-travel position.

In addition, the tubular walls 15 and 16 delimit, among them, a ring-shaped annular space 21 that opens on the side of the upper surface 14.

These tubular walls 15 and 16 are joined by radial partitions 22, each arranged at the level of one of the downstream junction points 19 that connect two ramp walls 17.

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As developed below, these radial partitions 22 constitute stop means for limiting the rotation maneuver of the opercle 7 of the cap 5 with respect to the head 4 of the cap 2 on a given angular sector, and thus defining a position of limit switch corresponding to the pivoted separate position.

To be complete, the bottom edges of these two tubular walls 15 and 16 are connected by a crown 23 that forms the bottom surface 13 of the cap head 4.

In this case, and only by way of example, the plug body 3 and the plug head 4 respectively have a diameter of the order of 17 to 20 mm and of the order of 24 to 28 mm; the cap body 3 and the cap head 4 also have, respectively, a height of the order of 14 to 21 mm and of the order of 5 to 10 mm. These dimensions are adapted according to the bottle to be equipped.

The pairs of ramps 17 are present in a number of four and each extend over an angular sector F of the order of 90 °.

Each ramp 17 extends advantageously over an angular sector G of 45 °, between an upstream junction point 18 and a downstream junction point 19, with an upward slope between these two points.

By way of example, seen from the side according to Figure 7, each ramp 17 defines an angle A with a plane perpendicular to the longitudinal axis 2 ', whose value is advantageously of the order of 5 ° to 45 °, preferably of the order of 13 ° at 15 °.

The two ramps 17 of a pair thus define between them an angle of preference of the order of 150 ° to 154 °.

The height E separating the upstream junction point 18 and the downstream junction point 19 is, for example, of the order of 1.5 mm to 6 mm (Figure 7).

The tubular cap 5 is described in turn in relation to Figures 11 to 14.

The skirt 6 and the opercle 7 of this cap 5 constitute two cylindrical parts that extend in extension of one another, and this according to a longitudinal axis 5 '.

For reasons of simplification, the longitudinal axis of the skirt 6 and the longitudinal axis of the opercle 7 are thus designated by the same reference 5 '.

The skirt 6 advantageously has a structure as described in document FR-2 946 960.

This skirt 6 is delimited by two annular edges: a lower edge 25 as opposed to opercle 7, and an upper edge 26 located on the side of opercle 7.

The upper edge 26 of the skirt 5 comprises a small peripheral lip 27, cantilevered outwardly, which is structured to limit, or even prevent, the formation of drops when, after service, the equipped bottle B is removed.

This monobloc lip 27 extends over the entire periphery of the upper edge 26 of the skirt 5; It has a triangular section whose base is integral with the skirt 5 and whose thickness decreases progressively as it moves away from the longitudinal axis 5 'visible in particular in Figures 15 and 16).

The upper face of the lip 27 is flat and extends in a plane perpendicular to the longitudinal axis 5 '. Its lower side, which connects the tip to the skirt 5, is flat or substantially flat; it extends from top to bottom, forming an angle with respect to the plane of the upper face between 5 ° and 40 ° (preferably of the order of 30 °).

On the other hand, the width of the upper face of the lip 27, starting from the outer face of the skirt 5, is comprised between 0.1 and 0.8 mm, and is preferably close to 0.5 or 0.6 mm.

This skirt 6 also includes means for its effective solidarity in the neck C of the bottle B provided with the monobloc collar D.

These interlocking means consist here of an annular internal throat 28 that opens towards the longitudinal axis 5 'and is defined by two annular men (thus forming an annular step towards the outside), and within which the monobloc collar D is housed. previously cited by force fitting.

The upper band of the skirt 6, which extends above this internal throat 28, advantageously has a constant or substantially constant diameter to the upper edge 26.

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The opercle 7 is in turn composed of a tubular wall 29 which is delimited by an upper edge 29a connected to a bottom wall 30 and by a lower edge 29b connected to the upper edge 26 of the tubular skirt 6.

The tubular wall 29 extends coaxially to the aforementioned longitudinal axis 5 '; the bottom wall 30 extends perpendicularly to this same longitudinal axis 5 '.

As shown in Figure 15, this opercle 7 comprises an inner surface 7a intended to cover the cap head 4, which is formed by:

- the inner surface 29c of the tubular wall 29, intended to be placed in front of the peripheral wall 16 of the plug head 4, and

- the lower surface 30a of the bottom wall 30, intended to be placed in front of the upper wall 14 of the plug head 4.

This inner surface 7a is equipped with several monobloc lugs 31 which are each intended to cooperate with one of the pairs of ramps 17 of the stopper head 7 to constitute a sliding part of the cam means.

To do this, the monobloc lugs 31 are distributed around the longitudinal axis 5 'and are spaced from each other with the angular sector F to cooperate with at least one of the ramps 17.

In this case, these studs 31, in number of four, are spaced with an angular sector F of the order of 90 ° around the longitudinal axis 5 '.

The studs 31 are connected here to the bottom surface 30a of the bottom wall 30 and to the inner surface 29c of the tubular wall 29.

These lugs 31 comprise a free bottom surface 32, as opposed to the bottom wall 30, intended to cooperate with the ramps 17 of the plug head 4 (visible in figures 14, 15 and 16).

For this, this lower surface 32 is dihedral, presenting a general form of V that is composed of two slats 32a and 32b inclined with respect to each other.

The slats 32a and 32b extend from an upstream junction point 32c disposed at a distance from the bottom wall 30 and each have an upward slope according to a direction of inverse rotation of one with respect to the other.

By "ascending slope", for opercle 7 observed on the side of the upper face of its bottom wall 30, the direction of rotation is understood (clockwise or counterclockwise, according to the case) in which the slat 32a or 32b is routed from an upstream end 32c located at a distance from the bottom wall 30 to a free downstream end located on the side of this bottom wall 30.

Thus, as shown in Figures 15 and 16 and taking into account the longitudinal axis 5 ', a first strip 32a is increasing clockwise and a second strip 32b is increasing in an inverse direction opposite to that of clockwise.

The slopes of these slats 32a and 32b are complementary, respectively, of the two associated ramps 17a and 17b.

By way of example, seen from the side according to Figure 15, each inclined slat 32a and 32b defines an angle A with a plane perpendicular to the longitudinal axis 5 ', identical or similar to that described above in relation to the ramps 17 of the plug.

Thus, here also the angle A is advantageously of the order of 5 ° to 45 °, preferably of the order of 13 ° to 15 °.

The two slats 32a and 32b thus define between them an angle advantageously of the order of 206 ° to 210 °.

The free bottom surface 32 of the lugs 31 is provided with a rib 33 disposed at a distance from the peripheral tubular wall 29.

This nerve 33 is intended to be housed in the crown 21 of the cap head 4, as illustrated by Figure 5, to participate in the rotation guidance of the opercle 7 and to stop against one of the radial partitions 22.

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On its inner surface 29c, the tubular wall 29 also comprises superimposed annular ribs 34 to constitute a second part of the interlocking means intended to block the opercle 7 on the cap head 4 in a position pivoted by an encycled type elastic socket.

The tubular wall 29 also has an outer surface provided with a plurality of vertical stripes to facilitate its grip in particular during operations of rotating the opercle 7 by a user.

To be complete, the joining means 8 comprise break initiation zones 8a which consist here of monobloc fastening blocks that are distributed around the longitudinal axis 5 'of the cap 5 (Figures 13 to 15).

These break initiation zones 8a (whose number may be between 3 and 10, preferably of the order of 6) constitute sites of lower resistance that join the lower edge 29b of the tubular wall 29 of the opercle 7 and the upper edge 26 of the skirt 6 of the cap 5.

In practice, the sealing device 1 is obtained by introducing the cap 2 in the cap 5 (Figure 5).

For this, the plug 2 is conveniently oriented with its head 4 inserted first and in front of the opercle 7; the plug 2 is also coaxially oriented to the cap 5 during this introduction.

Once conveniently introduced (Figure 5), the cap 2 and the cap 5 extend coaxially with respect to each other, their longitudinal axes 2 'and 5' being confused.

The skirt 6 of the cap 5 extends in front of and away from the cap body 3.

The opercle 7 of the cap 5 covers the cap head 4, with its bottom wall 30 resting on the upper face 14 of the head 4 and with its tubular wall 29 molded to the peripheral tubular wall 16 of the head 4.

The plug 2 is driven so that the junction point 32c of each stud 31 comes to be placed at the level of the junction point upstream 18 of a pair of ramps 17 and so that the slats 32a and 32b of each stud 31 embrace respectively slopes 17a and 17b of a pair (figure 15).

This hinged position is advantageously maintained here by the positioning of the ribs 34 of the opercle 7 directly below the ribs 20 that equip the cap head 4. This particularity allows to dissociate the assembly operation of the device 1 and the operation of placing on a bottle .

This sealing device 1 can then be attached on a bottle B to be sealed, by force fitting according to a coaxial direction to its longitudinal axes 2 'and 5' confused.

During this driving, the cap skirt 6 covers the bottleneck C (figures 1 to 4); its upper edge 26 extends to the level of the neck G.

The inner throat 28 receives the collar D of the bottle B to ensure the interlocking in translation of the skirt 6 on the neck C (figures 3 and 4).

At the same time, the body 3 of the cap 2 is inserted through the neck G of the bottle B to ensure its sealing to the liquids (Figure 3).

This axial driving continues until the lower surface 13 of the head 4 of the cap 2 rests on the neck G (figures 3 and 15).

When a person wishes to access the liquid packaged in the bottle B, it is sufficient to first perform a rotational maneuver on the opercle 7 of the cap 5 about its longitudinal axis 5 ', for example according to a direction of rotation contrary to the needles of the clock in figures 15 and 16 (represented by arrow S in figure 16).

Alternatively, due to the arrangement of ramps 17 in pairs, the user could also make the opercle 7 experience a rotational movement clockwise.

Therefore, the rotational movement for the degradation of the faldon / operculo junction means can be performed in both directions.

In addition, the corresponding rotation maneuver can be applied on the opercle, with bottle support, or on the bottle, with opercle support.

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The opercle 7 is pivoted according to a given angular sector G, in this case of the order of 25 ° to 45 °, to a separate limit position position in which the lugs 31 each come to abut against one of the partitions radials 22 (figure 16).

This rotation of opercle 7 is guided by cooperation between:

- the inner surface of the lugs 31 and the central tubular wall 15 of the plug head 4,

- the rib 33 of the lugs 31 and the crown 21 of the plug head 4, and

- the inner surface 29c of the tubular wall 29 of the opercle 7 and the outer tubular wall 16 of the plug head 4.

With the plug 2 locked in rotation by its body 3 driven into the neck G, the lugs 31 of this opercle 7 are each directed along one of the ramps 17 of each pair, in the direction of their points of attachment downstream 19 respective.

In this case, the slat 32b of each stud 31, of increasing slope counterclockwise,

It is routed along the ramp 17b of each pair, of increasing slope also in the opposite direction to that of

clockwise.

This cam path thus causes, simultaneously, a movement of the opercle 7 according to a coaxial rotation to the longitudinal axes 2 'and 5' and according to a direction of translation T oriented from the lower surface 13 towards the upper surface 14 of the plug head 4 (figure 16).

This movement causes the separation of opercle 7 with respect to the skirt 6 interlocked in translation (figure 16) and, in particular, the distance:

- of the bottom wall 30 of the opercle 7 with respect to the upper surface 14 of the plug head 4, and

- of the lower edge 29b of the tubular wall 29 of the opercle 7 with respect to the upper edge 26 of the skirt 6.

In practice, this displacement in translation is, for example, some millimeters, here of the order of 1 to 5 mm.

This helical movement of the opercle 7, with respect to the skirt 6, ensures the degradation of the rupture zones 8a constituting the joining means 8, in particular a reduced effort.

In the separated position obtained, the interlocking means 20, 34 cooperate together by elastic fitting, so that the opercle 7 is locked in translation in this separate position with respect to the cap head 4 (Figure 16).

The operator can continue his effort on the opercle 7 by an action that combines rotation and traction in order to gradually remove the cap body 3 with respect to the neck G of the bottle B (Figure 4).

In particular, if the operator continues his rotation maneuver counterclockwise, the lugs 31 resting on the radial partitions 22 can cause the cap body 3 to rotate on its neck G, also counterclockwise. clockwise.

The plug 2 and the opercle 7, integral with the plug head 4, together constitute a removable piece (figure 4).

If the user wishes to recap his bottle B, it is enough to take the opercle 7 carried by the cap 2 and then forcefully reintroduce the cap body 3 into the neck of the neck G.

The aforementioned separate position, obtained by the locking means 20, 34, constitutes an effective opening witness.

The sealing device 1 according to the invention has the interest of being a "combined" cap and cap assembly that can be assembled before being placed on a bottle.

In addition, this sealing device 1 has the interest of offering a maneuver in rotation of the operculum on a bottle devoid of screw pitch, which allows to preserve limited manufacturing costs and optimize the effort required for the breaking of the joining means.

Claims (10)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 1. Device for sealing the neck (G) of a bottle (B), said device (1) comprising: (i) a plug (2) comprising two cylindrical parts (3, 4) that extend in length from one another according to a longitudinal axis (2 '), respectively forming a plug body (3) and a plug head ( 4), said stopper head (4) having a diameter that is larger than the diameter of said stopper body (3), and said stopper head (4) comprising a lower surface (13), connected to said stopper body ( 3) and a free upper surface (14), located in opposition to said lower surface (13) according to said longitudinal axis (2 '), and (ii) a tubular cap (5) having a longitudinal axis (5 ') and within which said cap (2) is intended to be coaxially housed, said cap (5) comprising two parts (6, 7) extending in extension of one another according to said longitudinal axis (5 '), forming respectively a skirt (6) intended to extend in front of and at a distance from said cap body (3), comprising means (28) for its interlocking in translation on said bottle (B), and an opercle (7) intended to cover said plug head (4), and in which (iii) said stopper head (4) and said opercle (7) comprise cam means (17, 32) that cooperate with each other to cause, during a rotating maneuver (S) of said opercle (7) with respect to said cap head (4) around said longitudinal axes (2 ', 5'), a movement in translation (T) of said opercle (7) with respect to said cap head (4) according to said longitudinal axes (2 ' , 5 ') and in a direction (T) oriented from the lower surface (13) towards the upper surface (14) of said stopper head (4) so that once said sealing device (1) is placed on the neck (G) of a bottle (B), characterized in that said opercle (7) and said tubular skirt (6) are joined to one another by means of union (8) comprising breakage initiation zones (8a ), and because said manual maneuver in rotation of said coping opercle (7) (5) causes degradation of said joining means (8). 2. Device for sealing the neck of a bottle according to claim 1, characterized in that the cam means (17, 32) comprise two parts, one of them (32) disposed on said opercle (7) and the other (17 ) disposed on said cap head (4), with: - a first part (17) forming a slide, and comprising at least one helical ramp (17), and - a second part (32) forming a slider, comprising at least one stud (31) provided with an end surface (32) intended to slide along said helical ramp (17) during said rotating maneuver. 3. Device for sealing the neck of a bottle according to claim 2, characterized in that the first part (17) of the cam means (17, 32) is composed of several successive helical ramps (17) distributed around the longitudinal axis (2 ') and that each one extends over a given angular sector (G), and because the second part (32) of the cam means (17, 32) comprises several lugs (31) that are distributed around of the longitudinal axis (5 ') and spaced from each other with a given angular sector (F). Device for sealing the neck of a bottle according to any of claims 2 or 3, characterized in that the ramp or ramps (17) each have an ascending slope according to a direction of rotation given about the longitudinal axis ( 2 '), and because the stud or the studs (31) comprise an end surface (32) having a complementary slope of said associated ramp (17). Device for sealing the neck of a bottle according to claim 4, characterized in that the first part (17) of the cam means (17, 32) comprises several pairs of successive ramps (17), distributed around the longitudinal axis (2 '), each of said pairs of ramps (17) comprising a junction point (18) from which said two ramps (17) extend, each with an ascending slope according to a direction of reverse rotation of a with respect to another, and because the lugs (31) comprise an end surface (32) in V, whose slope is complementary to said two ramps (17). 6. Device for sealing the neck of a bottle according to any of claims 2 to 5, characterized in that the first part (17) of the cam means (17, 32) is arranged on the cap head (4), and why the second part (32) of the cam means (17, 32) is arranged on the opercle (7). 7. Device for sealing the neck of a bottle according to any of claims 1 to 6, characterized in that the cap head (4) and the opercle (7) also comprise: 10 fifteen - a stop means in rotation (22, 31) to limit the rotation maneuver of said opercle (7) with respect to said stopper head (4) on a given angular sector (G) and thus define a position of separate end of career, and - interlocking means (20, 34) for blocking at least in translation said opercle (7) on said stopper head (4) in said separate position. Device for sealing the neck of a bottle according to claim 7 in combination with any of claims 2 to 6, characterized in that the stop means (22, 31) comprise at least one radial partition (22), against which stops one of the lugs (31) during the operation of the opercle (7) towards the separate position. 9. Device for sealing the neck of a bottle according to any of claims 7 or 8, characterized in that the interlocking means (20, 34) consist of complementary structures that cooperate by means of elasticated encapsulation of the encycled type. 10. Bottle equipped with a sealing device (1) according to any of claims 1 to 9.